Cleanup python mediator2* mercurial: switch to mediator=python* rdiff-backup: switch to mediator=python* dbus-python: switch to mediator=python* pipdeptree: switch to mediator=python* pygobject-3-legacy: switch to mediator=python* pygobject-3: switch to mediator=python* docutils: switch to mediator=python* xmlschema: switch to mediator=python* tqdm: switch to mediator=python* py-cpuinfo: switch to mediator=python* pycairo: switch to mediator=python* pycairo-12: switch to mediator=python* pip: switch to mediator=python* pytest-legacy: switch to mediator=python* pytest: switch to mediator=python* coverage: switch to mediator=python* charset-normalizer: switch to mediator=python (commit: 28abba9)